Pile-driver.



P. W. LEBN.

PILE DRIVER.

APPLIOATION FILED :11m18.191a.

P. W. LEEN.

PILE DRIVER.

APPLIOATION FILED JUNI: 1e, 1913.

Patented Mar. 3, 1914.

2 SHEETS-SHEET 2.

MZiineLs-{ses/ y hbsAlloryS" PATRICK W. LEEN, OF MINNEAPOLIS, MINNESOTA.

PILE-DRIVER.

mesmo.

Specification of Letters Patent.

Application filed June 18, 1913.

PatentedMar. 3, 1914.

serial No. 774,329.

To all whom it may concern:

Be it known that LPArRIon W. LEEN, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Pile-Drivers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved pile driver especially adapted for driving sheathing and, to this end, it consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indi cate like parts throughout the several views.

Referring to the drawings: Figure 1 is a rear elevation of the improved machine in operative position; Fig. 2 isa side elevation of the same, on an enlarged scale, some parts being broken awayand some ofthe exposed parts being shown in section; Fig. 3 is a detail view principallyin horizontal seetion, taken on the line m3 :r3 of Fig. 2; Fig. l is a ndetail view, on an enlarged scale, taken on the line :v4 :c4 of Fig.` 1, showing the pivotal connection of one of the driving weight guides; Fig. 5 is a detail view in transverse section, showing one of the driving weights and guide therefor; and Fig.` 6 is a detail view in transverse section, taken on the line m6 e of Fig. 1, on an enlarged scale.

The mainframe of the machine is an inverted approximately U-shaped structure arranged to straddle a ditch Y, into which is driven a double row of sheathing Z, made up oit' a plurality of Aflat boards placed edge to edge, for the well knownpurpose of preventing the sides of the ditch from caving in. This frame comprises a pair of heavy upright timbers 1 and 2 connected, at their up per ends, by a pair of laterally spaced parallel bars 3. These bars 3 are permanently secured, at one end, to the upright 1 by nut equipped bolts 4 anda diagonal brace rod 5, and the upright 2is secured to the bars 3, for adjustments toward and from the upright 1, by a pair of nut equipped bolts 6, adapted to he passed through any one pair of aplnrality of longitudinally spaced holes 7 formed in the bars 3. The upright 2 is supported above a ground engagmg wheel 8 adj ustably connected thereto bya vertically extended rod` 9, swiveled to the bracket of said wheel 8 and having screw threaded engagement with a nut sleeve 10, which is countersunk in the lower end of the upright 2 and held against rotation with respect there to. By manipulation of the screw rods 9, the transverse bars 3 may be horizontally adjusted. Secured, by a bracket 11, to the intermediate portion of the upright 1 is a rearwardly extended supplemental frame section 12, as shown, preferably constructed from a single heavy horizontally extended timber. The-upright l rests on and is secured to a wheel bracket `13 in which is loosely journaled a stub shaft 14, having keyed thereto a ground engaging wheel 15 and a spur gear 16. Located `directly under the frameextension 12 is a supplemental frame17 also, as shown, preferably,constructed from` a single heavy timber secured, at its forward end, to the wheel bracket 13 by a hinge 18. A ground engaging wheel 19 is journaled in a wheel bracket 20 secured to the supplemental frame 17, and supports the rear end of said frame. The rear or free end of the 'frame extension 12 is adjustably supported from the supplemental frame 17 by a long, vertically extended screw rod 21, having screw threaded engagement with a nut block 22 secured to the frame extension 12. The lower end of this screw rod 21 rests on a bearing plate 23 secured to the supplemental frame 17, and the upper end thereof is provided with a hand Wheel 24, by which said screw rod may be turned.

For imparting rotary movement to the ground wheel 15, in orderto advance or back up the improved machine along the ditch Y, a hand lever 25 is loosely pivoted to the stub shaft 14, adjacent to the` spur gear 16," and is provided with a pivoted driving dog 26, for coperation with the teeth of the spur ear 16. A hand piece 27, for actuating said driving dog 2G, is connected thereto by a spring held link 28. As

shown in the drawings, the ground engaging wheels 8, 15 and 19 are supported on flat rails 29 loosely placed on the ground on each side of the ditch Y.

A pair of laterally spaced guide posts 30 are suspended from the bars 3 by nut equipped bolts 31. These bolts permit free oscillatory movement of the guide posts 30 between the uprights 1 and 2. The lower ends ofthe guide posts 30 embrace the double row of sheathing Z, as shown in Fig. 1, and the guide post 30 nearest the upright 2 is secured, for lateral adjustment toward and from the ot-her of said posts, by a plurality of alined longitudinally spaced perforations 32 in the bars 3, through which the pivot bolts 31 of said guide post may be passed. This adjustment permits the guide posts 30 to be spaced apart different distances, in the construction of ditches of different widths. Bolted to the inner face of each guide post 30 is a guide strip 33, of greaterg width than the said guide post, on which isi slidably mounted a driving weight 34 having dove-tail interlocking engagement with;` the guide strip 33.

Removable metallic caps Z are adapted to be telescoped onto the upper ends of the@ boards comprising the sheathing Z, for thej well known purpose of preventing the drivg ing weights 34 from splittingor breaking said sheathing Z. Another important funcl tion of these caps Z is to hold the free ends E of the guide strips 33 in their proper rela tion to the sheathing Z, in order to direct the driving` weights 34 onto the caps Z. Any: suitable means may be provided for attaching the guide strips 33 to the caps Z', but, as shown, they preferably have dove-tail sliding engagement with the said guide strips. For removing the caps Z from the sheathing, in case the same should become stuck thereon, said caps Z are provided with short chains Z2, adapted to be secured to hooks 34a on the driving weights 34. Obviously, by raising the driving weights 34, the caps may be easily removed from the sheathmg.

An explosive engine, indicated as an entirety by the numeral 35, is bolted to the' frame extension 12, for raising the driving weights 34. rEhe engine 35 also acts as a counterweightfor the main frame of the machine and holds the adjusting screw 21 in engagement with the supplemental frame 17. The enginek shaft 36 extends approximately parallel with the frame extension 12 and its outer end portion is journaled in a sleeve 37 passed through the upright 1 and in a bracket 3S bolted to the outer vertical face of the upright 1. A countershaft 39, parallel with the engine shaft 36, is journaled in a bearing 40 on the upright 1 and the bracket 38 and is'driven from the engine shaft 36 by intermeshing gears 41 keyed to said shafts. A pair of windlass drums 42 are loosely journaled one on the engine shaft 36 and thel other on the countershaft 39. Hoisting cables 43 connect the windlass drums 42 to the driving weights 34 and their intermediate portions run over guide sheaves 44 on the bars 3. The windlass drums 42 are independently controlled by friction cone clutches 45, the movable members of which are mounted, for endwise sliding movement, on the engine shaft 36 and countershaft 39, but are held for rotation therewith. The prongs of a pair of independently operated shipper levers 46, pivotally connected to the bracket 38, engage shipper collars 47 on the movable members of the clutches 45. It is evident that the sheathing Z may be removed from the ditch Y, after the same is filled, by the cables 43.

The operation of the improved machine may be brieiy described as follows: The machine may be moved along the ditch Y on the rail 29 by means of the lever 25. By lifting on the said hand lever, motion will be imparted to the wheel 15 in the direction of the arrow marked on Fig. 2 of the drawings. A reverse motion may be imparted to said wheel 15 by placing the hand lever 25 on the stub shaft 14 in reverse order from that shown in the drawings. By manipulating the screw rods 9 and 21, the uprights 1 and 2 may be set in true vertical positions, irrespective of the irregularities in the ground on which the machine rests. This same adjustment will level up the engine 35 and shaft 36.

Since the guide posts 30 are supported for pendulum-like movement, it is not necessary to set the machine as accurately as would otherwise be required, as the caps Z will hold the lower ends of the guide stripsin their proper relation to the sheathing AZ to direct the driving weights onto said caps. The supports for the guide posts 30 will also permit said guides to be swung edgewise a limited distance, in order tosuccessively drive several of the boards from which the sheathing is constructed, without having to move the machine.

From the foregoing description, it is evident that the machine is entirely self-sustaining and does not require the use of guy ropes or other anchoring means.

The term sheathing is herein used in a broad sense to cover piles of all kinds.

Vhat I claim is:

1. rlhe combination with an upright frame, of a guide secured to said frame,fcr pendulum-like movement, a driving weight slidably mounted on said guide, means for raisingand releasing said weight, means for adjusting said frame in a vertical plane that transversely intersects the plane of oscillatory movement of said guide, and means for adjusting said frame in the plane of the oscillatory movement of said guide.

2. The combination with an upright frame, of a pair of laterally spaced guides secured to said frame, for pendulum-like movement, means for adjusting one of said guides toward and from the other, driving weights slidably mounted on said guides, and means for raising and releasing said weights.

3. The combination with an upright frame, of a pair of laterally spaced guides secured to said 'frame for pendulum-like movement, means for adjusting one of said guides toward and from the other, driving weights slidably mounted on said guides, means for raising and releasing said weights,` and means for adjusting said frame in a vertical plane that transversely intersects the plane of oscillatory movement of said guides.

4. The combination with an upright frame, of a pair of laterally spaced guides secured to said frame, for pendulum-like movement, means for adjusting one of said guides toward and from the other, driving weights slidably mounted on said guides. means for raising and releasing said weights, means for adjusting said frame in a vertical plane that transversely intersects the plane of oscillatory movement of said guides, and means for adjusting said frame in the plane of the oscillatory movement ot' said guides.

5. The combination with an upright frame having a lateral frame extension, oi' means for vertically adjusting the outer end of said frame extension, an engine mounted on said frame extension and having its driving shaftf extended approximately parallel with said frame extension, a driving weight, a guide on said upright frame for said driving weight, and connections between said engine shaft and driving weight for raising and releasing saidweight.

6. The combination with an upright frame having a lateral frame extension, of a supplemental frame hinged to said upright frame in a plane below said frame extension, an adjustable connection between said frame extension and said supplemental frame, an engine mounted on said frame extension and having its driving shaft extended approximately parallel with said trame extension, a driving weight, a guide on said upright frame for said driving weight, and connections between said engine shaft and driving weight, for raising and releasing said weight.

7. The combination with a main frame, comprising a pair of uprights connected. at their upper' ends, by a transverse bar and means for longitudinally adjusting one of said uprights, of a guide pivotally secured, at its upper end, to said bar, for oscillatory movement, a driving Weight slidably mounted on said guide, and means for raising and releasing said driving weight.

8. The combination with a main frame, comprising a pair of uprights connected, at their upper ends, by a transverse bar, means for longitudinally adjusting one of said uprights, and means for adjusting said uprights in a vertical plane transversely of said bar, of a guide pivotally secured at its `upper end to said bar, for oscillatory movement, a driving weight slidably mounted on said guide, and means for raising and releasing said driving weight.

9. The combination with a main frame, comprising a pair of uprights connected, at their upper ends, by a transverse bar, for adjustments toward and from one another, means for longitudinally adjusting one of said uprights, and means for adjusting said uprights in a vertical plane that transversely intersects said bar, of a pair of laterally spaced guides pivotally secured to said bar, -for pendulum-like movement between said uprights, means for adjusting one of said guides toward and from the other,driv ing weights slidably mounted on said guides, and means for raising and releasing said weights 10. The combination with an upright support provided with a rearwardly projecting frame extension and having secured to its upper end one end oit' a horizontally eX- tended bar, of a supplemental frame hinged to said upright frame, in a plane below said frame extension, an adjustable connection between said frame extension and said supplemental frame, a longitudinally adjustable support between the ground and the outer end of said bar, an oscillatory guide strip pivotally secured, at its upper end, to said bar, a driving weight slidably mounted on said strip, and means for raising and releasing said weight.

l1. The combination with an upright support provided with a. rearwardly projecting trame extension and having secured to its upper end one end oi. a horizontally extended bar, of a supplemental frame hinged i to said upright frame, in a plane below said frame extension, an adjustable connection between said frame extension and said supplemental frame, a longitudinally adjustable support between the ground and the outer end of said bar, an oscillatory guide strip pivotally secured, at its upper end, to said bar, a driving weight slidably mounted on said strip, and means for raising and releasing said weight, said upright support, supplemental 't ame and longitudinally adjustable support having ground engaging wheels.

l2. The combination with an upright pendulum-like movement, a driving Weight frame, of a guide secured to said frame, for slidably mounted on said guide,r means for pendulum-like movement, a driving Weight raising and releasing said Weight, and a slide-bly mounted on said guide, means for pile cap siidably mounted on said guide.

5 raising and releasing said Weight, and I In testimony whereof I affix my signature 1,5

means for securing the free end of said in presence of two Witnesses. guide to a, pile in a, position to direct said Y PATRICK W; LEEN. driving Weight thereon. Vitnesses:

13. The Combination with an upright EDITH E. HANNA, i0 frame, 4of a guide secured to said frame, for HARRY DQ'KILGORE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

